Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Control apparatus of internal combustion engine










Image Number 15 for United States Patent #7284367.

The ignition timing is sustained at an initial value during a predetermined time beginning at a start of an engine, and is retarded after the predetermined time is elapsed to heat a catalyst at an early time. The predetermined time ends when the negative pressure of an intake pipe or the negative pressure of a brake booster reaches to a predetermined value. That is, the predetermined time is a period, which begins at a start of the engine and ends when a proper negative pressure can be sustained in the brake booster. As a result, it is possible to assure a negative pressure in the brake booster at an early time and to reduce exhaust emission at a start of the engine simultaneously.








 
 
  Recently Added Patents
Fluid discrimination device
Portable stand
Fusing apparatus and image forming apparatus provided with the same, and heating apparatus
Content protection apparatus and content encryption and decryption apparatus using white-box encryption table
Headset, terminal, and method capable of switching headset mode
Ventilated vacuum commutation structure
Ionization device, mass spectrometer including the ionization device, and image generation system including the ionization device
  Randomly Featured Patents
Nonvolatile semiconductor memory device
Refrigerating container
Refrigerant liquid indicator
Earring
Air conditioner access and service fittings
Stuffing tool for stuffing dolls and other creations
Vanadium coated phosphorus-vandium oxide and phosphorus-vanadium oxide co-metal catalyst and process for the manufacture of maleic anhydride
Safety interlock for machine and engine with magneto ignition
Tags for management systems
Lithographic apparatus and device manufacturing method